Lighting device



FIG. 1 is a first perspective view of the lighting device in accordance with my new design;

FIG. 2 is a second perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a right side view thereof; the left side view is identical to FIG. 4;

FIG. 5 is a back view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The portions of the drawings shown in broken lines represent environmental structure and form no part of the claimed design. 

The ornamental design for a lighting device, as shown and described. 